Ministry of Earth Sciences
Heavy to Very Heavy Rainfall at isolated places very likely over Andaman Nicobar Islands, Heavy Rainfall at isolated places over Sub-Himalayan West Bengal, Sikkim, Arunachal Pradesh, Assam, Meghalaya, Coastal Andhra Pradesh, Yanam, Rayalaseema, Coastal & South Interior Karnataka, Kerala & Mahe, on 21st May
Heavy Rainfall likely at isolated places over Tamil Nadu, Puducherry, Karaikal, Kerala & Mahe on 24th May
Heavy Rainfall likely at isolated places over Tamil Nadu, Puducherry, Karaikal, Kerala & Mahe on 25th May
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All India Impact Based Weather Warning Bulletin 
21 May : ♦ Thunderstorm with lightning & gusty wind  very likely at isolated places over Andaman & Nicobar Islands; with lightning & gusty wind  at isolated places over Haryana, Chandigarh & Delhi, Bihar, Jharkhand, Gangetic West Bengal, Odisha, Assam & Meghalaya, Telangana, Rayalaseema and Kerala & Mahe and with lightning at isolated places over Uttarakhand, Punjab, Vidarbha, Chhattisgarh, Sub-Himalayan West Bengal & Sikkim, Arunachal Pradesh, Nagaland, Manipur, Mizoram & Tripura, Konkan & Goa, Coastal Andhra Pradesh & Yanam, Karnataka, Tamil Nadu, Puducherry & Karaikal and Lakshadweep.
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Heavy to Very Heavy Rainfall at isolated places very likely over Andaman & Nicobar Islands and Heavy Rainfall at isolated places over Sub-Himalayan West Bengal & Sikkim, Arunachal Pradesh, Assam & Meghalaya, Coastal Andhra Pradesh & Yanam, Rayalaseema, Coastal & South Interior Karnataka and Kerala & Mahe.
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Squally wind  very likely to prevail over Southwest Arabian Sea, Southwest & adjoining West central Bay of Bengal, and along & off Tamil Nadu-Andhra Pradesh coasts; East central Bay of Bengal and adjoining South Andaman Sea. Fishermen are advised not to venture into these areas.
22 May : ♦ Thunderstorm with lightning & gusty wind  very likely at isolated places over Andaman & Nicobar Islands and West Rajasthan; with lightning & gusty wind  at isolated places over Telangana, Rayalaseema and Kerala & Mahe and with lightning at isolated places over Bihar, Coastal Andhra Pradesh & Yanam, Coastal & South Interior Karnataka, Tamil Nadu, Puducherry & Karaikal and Lakshadweep.
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Heavy to Very Heavy Rainfall at isolated places very likely over Andaman & Nicobar Islands and Heavy Rainfall at isolated places over Kerala & Mahe.
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Squally wind  very likely to prevail over Southwest Arabian Sea. Squally wind  likely over Southwest & adjoining West central Bay of Bengal, and along & off Tamil Nadu-Andhra Pradesh coasts, East central Bay of Bengal and adjoining Andaman Sea. Fishermen are advised not to venture into these areas.
23 May : ♦ Thunderstorm with lightning & squall  likely at isolated places over Andaman & Nicobar Islands; with lightning & gusty wind  at isolated places over West Rajasthan and Kerala & Mahe and with lightning at isolated places over Madhya Maharashtra, Coastal Andhra Pradesh & Yanam, Telangana, Rayalaseema, Coastal & South Interior Karnataka, Tamil Nadu, Puducherry & Karaikal and Lakshadweep.
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Heavy to Very Heavy Rainfall at isolated places likely over Andaman & Nicobar Islands and Kerala & Mahe.
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Squally wind speed reaching 40-50 kmph gusting to 60 kmph likely to prevail over Southwest Arabian Sea, 45-55 kmph gusting to 65 kmph likely over Southwest & adjoining West central Bay of Bengal, and along & off Tamil Nadu-Andhra Pradesh-south Odisha coast, 55-65 kmph gusting to 75 kmph likely over East central Bay of Bengal and adjoining Andaman Sea. Fishermen are advised not to venture into these areas.
24 May : ♦ Thunderstorm with lightning & gusty winds  likely at isolated places over Andaman & Nicobar Islands and Kerala & Mahe and with lightning at isolated places over Madhya Maharashtra, Marathawada, Coastal Andhra Pradesh & Yanam, Telangana, Rayalaseema, Coastal & South Interior Karnataka, Tamil Nadu, Puducherry & Karaikal and Lakshadweep.
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Heavy Rainfall likely at isolated places over Tamil Nadu, Puducherry & Karaikal and Kerala & Mahe.
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Squally wind speed reaching 40-50 kmph gusting to 60 kmph likely to prevail over Southwest Arabian Sea, 45-55 kmph gusting to 65 kmph likely over Southwest & adjoining West central Bay of Bengal, and along & off Tamil Nadu-Andhra Pradesh-south Odisha coast, 55-65 kmph gusting to 75 kmph likely over East central Bay of Bengal and adjoining Andaman Sea. Fishermen are advised not to venture into these areas.
25 May : ♦ Thunderstorm with lightning & gusty winds  likely at isolated places over Andaman & Nicobar Islands and Kerala & Mahe and with lightning at isolated places over Madhya Maharashtra, Marathawada, Coastal Andhra Pradesh & Yanam, Telangana, Rayalaseema, Coastal & South Interior Karnataka, Tamil Nadu, Puducherry & Karaikal and Lakshadweep.
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Heavy Rainfall likely at isolated places over Tamil Nadu, Puducherry & Karaikal and Kerala & Mahe.
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Squally wind speed reaching 40-50 kmph gusting to 60 kmph likely to prevail over Southwest Arabian Sea, 45-55 kmph gusting to 65 kmph likely over Southwest & adjoining West central Bay of Bengal, and along & off Tamil Nadu-Andhra Pradesh-south Odisha coast, 55-65 kmph gusting to 75 kmph likely over East central Bay of Bengal and adjoining Andaman Sea. Fishermen are advised not to venture into these areas.

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